Combination material working machine



4 Sheets-Sheet 1 i)... LAD) INVENTORJ k A. BOUGET F: M. MALHIOT ATTORNEYwbr Y. A. BOUGET Er AL COMBINATION MATERIAL WORKING MACHINE Filed Se t.22, 1934 July 28, 1936.

July 28, 1936. A, BQUGET r. 2,049,191

' COMBINATION MATERIAL WORKING MACHINE Filed Sept. 22, 1934 4Sheets-Sheet 2 FIG. 5.

i i /72 I 5y F: M. MAL/H07 U v fiRWw M ATTORNEY July 28, 1936. Y. A.BOUGET ET AL 2,049,191

COMBINATION MATERIAL WORKING MACHINE Filed Sept. 22, 1934 4 Sheets-Sheet3 I40 I38 I42 I39 FIG. 9.

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H4 INVENTORS A A. ROUGE? I. M. MALHIOT A T TORNEV 4 Sheets-Sheet 4ATTORNEY y 1936. Y. A. BOUGET ET AL COMBINATION MATERIAL WORKING MACHINEFiled Sept. 22, 1934 FIG. 14

INVENTORS Patented July 28, 1936 UNITED STATES PATENT OFFICE COMBINATIONMATERIAL WORKING MACHINE Application September 22, 1934, Serial No.745,022

2 Claims.

This invention relates to combination material working machines and moreparticularly to a ma chine tool adaptable to be used as a lathe,circular saw, jigsaw, jointer and the like.

An object of the invention is to provide a machine tool of simple andrigid construction and capable of being easily and quickly adapted foruse in a variety of operations.

'With the above and other objects in view one v embodiment of theinvention may be in a wood lathe having a skeleton box shaped bedcomprising a pair of channel shaped longitudinal side members of metalheld rigidly together and spaced apart by means of transverse endmembers of metal preferably welded across the ends of the side members,the machine being further provided with a headstock and a motor thereformounted on one end of the bed and with other auxiliary assembliesadaptable to be removably mounted on the bed for coaction with or to bedriven by the headstock.

Other objects and characteristic features of the invention will appearfrom the following detailed description of one embodiment of the in- 25vention taken in connection with the accompanying drawings in which thesame reference numerals are applied to identical parts in the severalfigures and in which Fig. 1 is a broken view in front elevation of a 30machine constructed in accordance with the invention;

Fig. 2 is an end view of the wood turning driving head;

Fig. 3 is a cross section on the line 3-3 of Fig. 1;

Fig. 4 is a detached broken view in perspective of one end of the toolrest base;

Fig. 5 is a broken view in front elevation of the left end of themachine with the grinding wheel unit and the circular saw unit mountedthereon 40 and with the saw guard omitted for clarity;

Fig. 6 is a broken view thereof in right hand end elevation with the sawguard in place and the work guides removed for clarity;

Fig. 7 is a detached view of the saw table sup- 45 port;

Fig. 8 is a broken view in front elevation and partly in section on anenlarged scale of the jigsaw unit as mounted on the bed with the frontplate omitted;

50 Fig. 9 is a detached face view of the jigsaw clamp;

Fig. 10 is an edge view thereof;

Fig. 11 is an end view thereof;

Fig. 12 is a detached plan view of the jigsaw as e;

Fig. 13 is an enlarged section on the line l3l 3 of Fig. 7;

Fig. 14 is an enlarged plan view of the Jolnter or planer unit, and

Fig. 15 is an enlarged view thereof in left hand 5 end elevation.

In the embodiment of the invention herein disclosed a wood workingmachine adaptable for a plurality of modes of operation has a mainsupporting member or bed supported on legs or other means not shown. Thebed 20 comprises a pair of parallel symmetrically positioned,longitudinal, channel shaped, front and rear members 2| and 22 which arerigidly spaced apart and held together by means of transverse end 15members 23 rigidly secured to the ends of the front and rear memberspreferably by welding, so that the front and rear members 2| and 22 andthe end members 23, 23 form a substantially unitary paralleloplpedal boxof great rigidity as 20 regards both bending and torsional stressesthereon. The oppositely facing edges of the upper, inwardly extendingflanges of the front and rear channel members define between them alongitudinal slot 24 which serves to receive the vari- 25 ous clampingmeans used to mount various tool units on the bed. The top surfaces ofthe two members 2| and 22 are machined to lie in one substantially flatand horizontal plane, and the inner edges of the flanges which definethe slot 24 are made substantially vertical and mutually parallel planesto serve as guides. A similar slot 25 is defined between the bottomflanges of the members 2| and 22 and serves to allow chips and dirtentering the box to fall through or be removed and also gives access tothe under side of units mounted on the bed.

A motor 26 is mounted on the vertical wall of an L shaped support, thetop horizontal wall being bolted as at 21 or otherwise secured to theunder side of the bed near the left end thereof. The motor is preferablyprovided with a stepped grooved driving pulley 28 to receive a belt 29which passes up through the slots 24 and 25, The motor is fed withelectric current through line wires and a control switch not shown.

0n the upper face of the bed at the left end thereof is rigidly secureda headstock frame 30 having flat horizontal base 3| portions secured tothe bed as by bolts or screws 32, and having integral therewith spacedupstanding left and right end walls 33 and 34 extending transversely ofthe bed. A generally U shaped central vertical wall 35 extends acrossbetween the end walls and is formed at its two upper ends with integralenlargements 38 and 31 in which is Journalledh horizontally disposedshaft 38 having a pair 0 central threaded coaxial stubs 39 and 48extending out beyond the walls 33 and. Preferably for cheapness,lightness and rigidity the headstock construction comprises making thetransverse walls 33 and 34 integral with the base portion 3| by bendingfrom sheet steel. The center wall 35 is cut from similar material andwelded along its edges to the walls 33 and 34 and to the base portion3|. The bearing portions 36 and 31 may be simply and cheaply made fromheavy walled tubing or from axially drilled rod stock, and are likewisewelded to the sidewalls 33 and 34 and to the upper edges of the centerwall 35. The structure thus created is cheaper and lighter than acommensurately strong and rigid casting.

In Fig. 1, the machine is shown as adapted for use as a wood turninglathe. To this end a driving head 4| having a central longitudinal bore42 threaded to coact with the stub 48 is mounted thereon. The head 4| isalso provided with two pairs of recesses 43, 43 and 44, 44 located atdiflerent radial distances from the axis of the head and adapted toreceive a pair of chisel edged driving dogs 45, 45. The central bore 42is further formed at its right hand end to receive a center point 46. Astepped pulley 41 to be driven by the belt 29 is secured tothe centralpart of the shaft 38.

A tailstock frame so is mounted adjustably on the top face of the bed 28as by bolts 5| and a transverse clamp member 14. This frame 58 comprisespreferably a flat horizontal base portion 52 and an integral transversevertical wall 53 formed from one piece of sheet stock. A centrallongitudinal wall 54 of sheet stock is welded along its bottom edge andleft hand edge to the base 52 and vertical wall 53 respectively. Bearingportions 55 and 56 are welded in place as shown in Fig. 1, portion 55 tothe wall 53 and to the wall 54, and portion 56 to the wall 54..

A threaded tail center 51 having a center point 58 is slidably mountedin the bearings 55 and 56 in coaxial alignment with the shaft 38, and islongitudinally adjustable by means of a hand wheel 59 threaded thereonbetween the bearings. The center 51 is kept from rotating by means of akey 68 mounted in the bearing 56 and riding in a slot 6| formedlongitudinally in the center body. A thumbscrew 62 mounted in thebearing '56 and abutting at its end against the key 88 serves to clampthe center 51 in adjusted position.

A tool rest 63 of conventional form is mounted on a post 64 which isvertically adjustable in a socket 65 by means of a clamp screw 66. Thesocket 65 is mounted on and secured as by welding to a base 61 havinggenerally an inverted T cross section. The base 61 rests on and extendstransversely across the bed 28, and is formed with a central verticalslot 18 throughout all of its length except for its end walls. A clamp68 of inverted channel cross section is positioned within the bed 28parallel to the base 61 and abutted against the under surfaces of theupper flanges of the bed members 2| and 22. A clamp bolt 69 has its headin the channel of the clamp 68 and its body'extends up through aperforation therefor in the web of the clamp 68, through the slot 24 andthrough the slot 18 in the base 61. A wing nut 1| on the upper end ofthe bolt 69 serves to clamp the member 68,. the bed 28 and the base 61together thus holding the toolrest 63in place. Loosening the nut 1|permits the base 18 to be adjusted along the bed 28 f together with theclamp 68. and also permits the base 61 to be adjusted transversely ofthe bed 28 by moving relatively to the clamp 68 also, the bolt 69sliding in the slot 18. If desired a pin, 5 stud, lug or the like may berigidly mounted on the clamp 68 to extend up into the slot 18 and coactwith the bolt 69 to prevent rotational relative movement, of the clamp68 and base 61.

Preferably, for cheapness and lightness, the base 61 may be made of apair of angle beams 1| and 12 positioned back to back in'parallel spacedrelationship, defining the slot 18 between them and held: together andspaced apart by a correspondingly inv'erted T-shaped flat plate 13welded across the ends-of the bars 1| and 12 at either end thereof.

It will be noted that all of the structural elements of the frames andsupports thus far described as pertaining to the machine are made 20from commercial tubes or beams of stock sections or from simple cut and,bent sheet metal and are welded together. Clumsy and cumbersome as wellas relatively brittle members of cast metal are completely obviated.

In Fig. 1, for convenience of illustration, the jointer unit furtherdisclosed in Figs. 14 and 15 is shown in position on the machine butwill be described later in detail in connecton with the latter figures.I

Figs. 5 and 6 show a circular saw unit and a grinding unit set upsimultaneously for convenience of illustration, although either may beused alone. The saw and its appurtenances are at the right side of thepulley 41 and the-stone at the left. The saw 15 is centrally perforatedand mounted on the stub 48 with a spacing collar 16 and a saw clamp 11betweenthe saw and the journal 31. On the other side of the saw are asaw clamp 18 and a lock nut 19 threaded on the'stub 48 whereby the sawis secured on the stub 48 of the shaft 36 to be driven thereby.

A saw table 88 is provided to carry work to the saw. This tablecomprises a base member 8| consisting of a relatively heavy rectangularmetal plate secured across the top of the bed by bolts or screws 82. Thetwo ends, front and back, are turned up as verticalflanges 83 and 84. Atthe right and left hand sides vertical transverse partial walls 85 ofrelatively thin sheet metal are welded in place. Two vertical channelsor guide ways 86 and 81 are cut in the outer face of each flange 83 and84. In the left hand guideway 86 of each flange is slidably mounted oneof a pair of identically similar support members, 88 in front and 89 inthe rear. Each of the members 88 and 89 has a median longitudinal slotin its lower portion through which passes a clamp screw 98, 98 mountedin the corresponding flange 83 or 84 for clamping the members 88 and 89in verti- 60 cally adjusted position.

The upper end of each of the members 88 and 89 is tapered (-Fig. '1) andvertically slotted and a round ended bearing piece 9|, 9| is welded inplace in each of the slots. A flat supporting plate 85 92 or 93 ispositioned vertically against the outer face of each member 88 or 89 andclamped thereto by a clamp screw 94, 94 mounted in the member, in athreaded hole 95 therein. The screw 94 passes through an arcuate slot 96in the plate 92 70 or 93 as the case may be, the slot having its centerof curvature at the tip of the bearing piece 9 I, so that the plate maybe swingingly adjusted on the member about the tip of the bearing pieceas a center. The top edge of each plate 92 or 93 is 78 turned out atright angles to form a flange which is welded to the under face of aflat generally rectangular table-top 96 which is thus supported to beadjustable for height by means of the screws 90 and for inclination tothe planes of the saw by means of the screws 94.

The under side of the table top 95 is formed with angular or arcuatenotches I68 to receive the tips of the bearing pieces 9I and thesenotches are so proportioned that the axis about which thetable istiltable lies'very near the top or working surface of the table. Hencethe customary slot through which the saw passes may be made narrow.Adjustable guides 91 and 98 for the work are mounted on top of thetable.

The rear supporting member 89 has a block I00 welded thereto in which issupported a stationary shaft or spindle I04 extending horizontallytherefrom to the left. A block IOI is pivoted at the left end of thespindle and carries one end of a gooseneck arm I02, the other end ofwhich overhangs the saw and carries a saw guard I03 pivoted thereon.

The grinding unit comprises a grinding wheel or stone I05 mounted on thestub 39 of the shaft 38 by means of a nut I08 and clamps I01. A guard orhousing I 08 surrounds the wheel I05 and is secured to the headstockwall 33 by bolts I09. A tool grinding rest H0 is mounted in the workopening of the housing I08. The housing I08 comprises a vertical innerwall I59 of sheet metal, generally c-shaped, which rests against theouter face of the wall 33 and is secured thereto by the bolts I09 whichpass through horizontal slots I10 in the wall I89. The wall I59 isformed at its two front edges and at its top and rear edges withintegral flanges I1I extending out to the left at right angles to thewalL-A vertical sheet metal outer wall I12 of shape generally like thatof the wall I69 is secured to the outer edges of the flanges I1 I, as bycrimping the edges thereof over the everted edges of the flanges. Thework rest I I0 is carried on the front edges of the opening of the c ata level just below the level of the axis of rotation of the wheel I05.Thus since the housing as a whole may be adjusted forward andbackhorizontally on the bolts I09 the tool rest remains at the properheight relative to the wheel for a considerable range of wheeldiameters.

Figs. 8 to 13 inclusive show the jigsaw unit, in which the same sawtable 96 is used as just described in connection with the circular sawunit. A c-shaped support III is secured to the outer face of theheadstock wall 34 by bolts or screws I I2 and a vertical tubular sleeveH3 is welded to the support III. A collar H4 is secured within each endof the sleeve and between these two collars is a split lubricatingsleeve I I5 of felt within the sleeve II3. A pitman IIG slides in and isguided by the collars I I4 and is driven in vertical reciprocation by alink I I1, one end of which is journalled in the pitman and the otherend of which is eccentrically journalled in a driving head I I8 mountedon the stub 40 of the shaft 38. The sleeves I I3 and I I5 are slotted topass the pitman.

In the upper end of the pitman H6 is an axial threaded bore to receivethe correspondingly threaded stem of a saw clamp base II9. A lock nutI20 is threaded on the stem to lock it in position in the pitman. Theupper end of the base II 9 is axially bored and recessed to receive afolded saw clamp I22. Clamp screws I2I are mounted in the pitman head toclose the clamp on the lower extremity of a saw I23 placed therein.

A saw guide roller I24 is supported just below the under side of the sawslot in the table 98 in position to bearagainst the rear non-serratededge of the Jigsaw blade I23, on a pin I25 mounted in a recessed blockI28 secured to a rod I21 sup- 5 ported between clamping blocks I28 andI29 held together and against the under side of the table by a clamp I30and a screw I3I.

Above the table 98 and in vertical alignment with the clamp I22 is anidentically similar clamp 10 222, carried in a member 2 I 9 similar tothe member I22, and clamped by screws 22I, 22I. The

threaded stem of the member 2I9 is screwed into threaded tube I32 andlocked in place by a nut 220. The tube I32 is slidably supported in aver- 15 tical sleeve I33 mounted in an upper head I34 secured to the endof a supporting beam I35. The beam I35 is a T-beam extendinghorizontally to the right and then curved down so that its right endrests against the front face of the tail- 20 stock 50 as shown in dottedlines in Fig. 1 where it is secured by bolts I38.

The tube I32 is supported on the head I34 by two compression springs I31and I38 surrounding the tube. The lower end of the spring I31 25 abutsagainst the head I34 and its upper end both abuts agaii. and grips acollar I38 loosely encircling the tube. The lower end of the spring I38both grips and abuts against the collar and its upper end abuts againstan annular stop I40 30 secured near the top of the tubes. The twosprings are coiled in opposite directions so that each nullifies thetendency of the other to rotate the tube I32 and therewith the saw asthe springs are compressed and released.

An outer tube MI is mounted on the head I34 concentric to the tube I32and a washer I42 of suitable material such as leather or rubberisgripped between the stop I40 and a collar I43 held on the tube I32 bya jam screw I44. The head I34 is provided with a passage I45 leadingfrom the annular space between the tubes I32 and HI and when in actionthe washer I42 pumps an intermittent Jet of air from the passage I45 toblow chips away from work and saw.

Figs. 14 and 15 and the left hand end of Fig. 1 show a jointer or planerunit in position for use. This comprises a principal vertical supportingplate I46 applied against the outer face of the left wall 33 of theheadstock, and a second plate I41 welded flatwise thereto and bent overhorizontally at the top to form a table I48. These two conjointed platesare held adjustably in place against the member 33 by bolts I48 passingthrough vertical slots I50 in the plates I45 and I41. The table I48 isdivided into front and rear halves by a broad slot I5I to allow a rotarycutting tool I52 to project up therethrough, the tool being mounted onthe stub 39 of the shaft 38. A pair of slabs I53 of maple wood or othersuitable 60 material are supported on the table I48 and are adjustablyheld thereon by screws I54 passing through slots I55 in the table andentering clamp blocks I56.

A guard post support I51 consisting of a 05 generally c-shaped strip ofsheet metal is welded to the under side of the left front comer of thetable I48 and extends its ends out beyond the left edge of the table. Apost I58 is journalled in the support. The upper portion of the post is70 surrounded by a sleeve I59 whose lower end rests on and is supportedby the upper face of the support I51.

A guard has a vertical outer wall I formed at the bottom with anintegral inturned flange 15 its lower end hooked over the support Illand its upper end hooked over the edge of the vertical guard wall insuch a way asto yieldingly resist pivotal motion of the guard as a wholeabout the post in a counterclockwise direction as seen from above. Theguard is further formed with an integral front wall depending verticallyfrom the roof in a direction slanting from left front to right rear sothat when a piece of work is pushed rearwardly over the blocks I" theguard is swung yieldingly out to the left. A roughly semicylindricalguard I is permanently positioned under the table and around the'tool,and is longitudinally slotted as at I to allow chips and debris from thework to fall through. The-guard is secured to the table I and to theplate I" as by welding as shown at I61, thus aiding to support andstifien the table.

The apparatus thus disclosed is self-evidently adaptable to theprincipal operations required inwoodwork but the principles embodied mayalso be applied in a metal working machine or other analogous apparatus.It will be noted that no castings except possibly the tail stockadjusting wheel 59 are required, but the entire apparatus is composed ofparts which can be simply and cheaply made from stock beams of standardcross-section or from sheet metal and that only cutting and bendingoperations are requisite for its construction as regards the principalmembers. No drawing or stamping operations are needed. Thus ordinarymachine shop tools only are required with no expense for heavy presswork or expensive press tools or for foundry work and 'molds.

The embodiment of the invention herein dis- 5 closed is illustrativemerely and may be modilied and departed from in many ways withoutdeparting from the spirit and scope of the invention as pointed out inand limited only by the appended claims. r

What is claimed is: e a.

1. In a machine tool. a bed comprising two longitudinal metal beamshaving a channel section and spaced apart and held together insubstantially parallel relation by metal plates welded 15 across theends thereof in combination with a Jigsaw head support comprising an endwall of sheet metal having one end bent at right angles to form anintegral base portion, a central wall of sheet metal perpendicular tothe side wall and 20 to the base portion and welded to both, and asupporting arm consisting of a beam having a vertical portion secured'totheside wall and an integral horizontal portion.

2. In a machine tool, a jigsaw head unit comprising an end wall of sheetmetal having one and bent at right angles to form an integral baseportion, a central wall of sheet metal perpendicular to the side walland to thebase portion and welded to both, and a supporting arm con- 30,sisting of a beam having a-vertica'l portion secured to the side walland an integral horizontal portion, in combination with a head mountedon the the housing and abutting against the housing and the arm, and asaw clamp mounted in the housing.

YVES A. BOUGET. FRANK MALHIO'I'.

